A women sell food under the wing of a plane wreckage being used as housing in M'Poko Internally Displaced Persons camp in Bangui, Central African Republic on Saturday, February 13, 2016. The M'Poko IDP camp, just outside the capitol's airport, currently houses close to 20,000 people displaced due to the ongoing conflict in Central African Republic. (Photo by Jane Hahn/The Washington Post)

A woman carries water during during a visit by a European Union delegation, at an IDP camp in Azaza, east of Ad Damazin, capital of Blue Nile state, October 21, 2015. The camp houses people displaced by war between the Sudan People's Liberation Movement-North (SPLM-N) rebels and the Sudanese government. (Photo by Mohamed Nureldin Abdallah/Reuters)

In this January 4, 2016 photo, the weapon of a rebel fighter for the 36th Front of the Revolutionary Armed Forces of Colombia, or FARC, hangs from a branch serving as a makeshift clothesline, near a rebel camp, in Antioquia state, in the northwest Andes of Colombia. “We’ll lay aside our weapons, like the accord says, but never hand them over”, says Juan Pablo, a commander of the 36th Front. (Photo by Rodrigo Abd/AP Photo)

Arisha, 9, takes instructions from coach Younus Qambrani during an exercise session at the first women's boxing coaching camp in Karachi, Pakistan February 19, 2016. For the past six months about a dozen girls, aged 8 to 17, have gone to the Pak Shine Boxing Club after school to practice their jabs, hooks and upper cuts. (Photo by Akhtar Soomro/Reuters)

Last weekend, the National Building Museum in Washington, D.C., opened a 10,000 square-foot ball pit to the general public, and everyone cheered that, finally, someone made their childhood dreams come true.

A shoebill is displayed at Ueno Zoo in Tokyo August 28, 2012. (Photo by Itsuo Inouye/Associated Press)

Redhead Day (Roodharigendag in Dutch) is the name of a Dutch summer festival that takes place each first weekend of September in the city of Breda, in the Netherlands. The two-day festival is a gathering of people with natural red hair, but is also focused on art related to the colour red. Activities during the festival are lectures, workshops and demonstrations which are aimed specifically at red-haired people. The festival attracts attendance from 50 countries and is free due to sponsorship of the local government.

June 21: “World War Z”. Brad Pitt battles zombie apocalypse in $170 million film by “Quantum of Solace” director Marc Forster. This publicity photo released by Paramount Pictures shows, center, Brad Pitt as Gerald Lane in a scene from the film, “World War Z”, from Paramount Pictures and Skydance Productions in association with Hemisphere Media Capital and GK Films. (Photo by Jaap Buitendijk/AP Photo/Paramount Pictures)